Mount Vernon Township is located in Jefferson County, Illinois. There are roughly 11,669 residents, living in 4,881 households. The average temperature for Mount Vernon Township this time of the year is low of 54F and high of 77F. On average, Mount Vernon Township gets about 4.58 inches of precipitation in May. Most residents are home owners (65%), have a high school diploma (52%) and are single, no kids (41%).
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